<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Set the write concern for this database</title>
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-base.css" />
<link media="all" rel="stylesheet" type="text/css" href="styles/03e73060321a0a848018724a6c83de7f-theme-medium.css" />

 </head>
 <body class="docs"><div class="navbar navbar-fixed-top">
  <div class="navbar-inner clearfix">
    <ul class="nav" style="width: 100%">
      <li style="float: left;"><a href="mongodb.setslaveokay.html">« MongoDB::setSlaveOkay</a></li>
      <li style="float: right;"><a href="mongodb.--tostring.html">MongoDB::__toString »</a></li>
    </ul>
  </div>
</div>
<div id="breadcrumbs" class="clearfix">
  <ul class="breadcrumbs-container">
    <li><a href="index.html">PHP Manual</a></li>
    <li><a href="class.mongodb.html">MongoDB</a></li>
    <li>Set the write concern for this database</li>
  </ul>
</div>
<div id="layout">
  <div id="layout-content"><div id="mongodb.setwriteconcern" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">MongoDB::setWriteConcern</h1>
  <p class="verinfo">(PECL mongo &gt;=1.5.0)</p><p class="refpurpose"><span class="refname">MongoDB::setWriteConcern</span> &mdash; <span class="dc-title">Set the write concern for this database</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mongodb.setwriteconcern-description">
  <h3 class="title">Description</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>MongoDB::setWriteConcern</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span> <code class="parameter">$w</code></span>, <span class="methodparam"><span class="type">int</span> <code class="parameter">$wtimeout</code><span class="initializer"> = ?</span></span>): <span class="type">bool</span></div>

 </div>


 <div class="refsect1 parameters" id="refsect1-mongodb.setwriteconcern-parameters">
  <h3 class="title">Parameters</h3>
  <dl>
<dt>
<code class="parameter">w</code></dt>
<dd>
<p class="para">The write concern. This may be an integer denoting the number of servers required to acknowledge the write, or a string mode (e.g. &quot;majority&quot;).</p></dd>
<dt>
<code class="parameter">wtimeout</code></dt>
<dd>
<p class="para">The maximum number of milliseconds to wait for the server to satisfy the write concern.</p></dd>
</dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-mongodb.setwriteconcern-returnvalues">
  <h3 class="title">Return Values</h3>
  <p class="para">Returns <strong><code>true</code></strong> on success, or <strong><code>false</code></strong> otherwise.</p>
 </div>


 <div class="refsect1 errors" id="refsect1-mongodb.setwriteconcern-errors">
  <h3 class="title">Errors/Exceptions</h3>
  <p class="para">Emits <strong><code>E_WARNING</code></strong> if the <code class="literal">w</code> parameter is not an integer or string value.</p>
 </div>


 <div class="refsect1 examples" id="refsect1-mongodb.setwriteconcern-examples">
  <h3 class="title">Examples</h3>
  <div class="example" id="example-87">
   <p><strong>Example #1 <span class="methodname"><strong>MongoDB::setWriteConcern()</strong></span> example</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br />$mc&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">(</span><span style="color: #DD0000">'mongodb://rs1.example.com,rs2.example.com'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$db&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">selectDB</span><span style="color: #007700">(</span><span style="color: #DD0000">'test'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;Require&nbsp;that&nbsp;the&nbsp;majority&nbsp;of&nbsp;servers&nbsp;in&nbsp;the&nbsp;replica&nbsp;set&nbsp;acknowledge&nbsp;writes<br />//&nbsp;within&nbsp;three&nbsp;seconds.<br /></span><span style="color: #0000BB">$db</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setWriteConcern</span><span style="color: #007700">(</span><span style="color: #DD0000">'majority'</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">3000</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-mongodb.setwriteconcern-seealso">
  <h3 class="title">See Also</h3>
  <ul class="simplelist">
   <li class="member">The <a href="mongo.writeconcerns.html" class="link">write concern</a> documentation.</li>
   <li class="member"><span class="function"><a href="mongodb.getwriteconcern.html" class="function" rel="rdfs-seeAlso">MongoDB::getWriteConcern()</a> - Get the write concern for this database</span></li>
  </ul>
 </div>


</div></div></div></body></html>